# Android App Crashes Flutter Video SDK

**URL:** <https://devforum.zoom.us/t/android-app-crashes-flutter-video-sdk/131306>\
**Category:** Flutter\
**Created:** [April 10, 2025, 3:16pm UTC](https://devforum.zoom.us/t/android-app-crashes-flutter-video-sdk/131306 "2025-04-10T15:16:01Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![gireesh.ks](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/gireesh.ks/32/48293_2.png) [@gireesh.ks](https://devforum.zoom.us/u/gireesh.ks)\
**Post date:** [April 10, 2025, 3:16pm UTC](https://devforum.zoom.us/t/android-app-crashes-flutter-video-sdk/131306/1 "2025-04-10T15:16:01Z")

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Android App crashes when another participant refreshes the browser window. Following is the crash log

‘java.lang.String us.zoom.sdk.ZoomVideoSDKUser.getUserID()’ on a null object reference

[] E/AndroidRuntime(32418): Process: com.example.integrated\_project, PID: 32418  
[] E/AndroidRuntime(32418): java.lang.NullPointerException: Attempt to invoke interface method ‘java.lang.String us.zoom.sdk.ZoomVideoSDKUser.getUserID()’ on a null object reference  
[] E/AndroidRuntime(32418): at com.flutterzoom.videosdk.FlutterZoomVideoSdkUser.jsonUser(FlutterZoomVideoSdkUser.java:54)  
[] E/AndroidRuntime(32418): at com.flutterzoom.videosdk.FlutterZoomVideoSdkPlugin.onUserHostChanged(FlutterZoomVideoSdkPlugin.java:1085)  
[] E/AndroidRuntime(32418): at us.zoom.internal.ZoomVideoSDKDelegateHelper$1$12.run(ZoomVideoSDKDelegateHelper.java:2)  
[] E/AndroidRuntime(32418): at android.os.Handler.handleCallback(Handler.java:1000)  
[] E/AndroidRuntime(32418): at android.os.Handler.dispatchMessage(Handler.java:104)  
[] E/AndroidRuntime(32418): at android.os.Looper.loopOnce(Looper.java:242)  
[] E/AndroidRuntime(32418): at android.os.Looper.loop(Looper.java:362)  
[] E/AndroidRuntime(32418): at android.app.ActivityThread.main(ActivityThread.java:8448)  
[] E/AndroidRuntime(32418): at java.lang.reflect.Method.invoke(Native Method)  
[] E/AndroidRuntime(32418): at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552)  
[] E/AndroidRuntime(32418): at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:992)  
[+21 ms] I/Process (32418): Sending signal. PID: 32418 SIG: 9

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<div class="post-metadata">

**Author:** ![richard.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/richard.zoom/32/41061_2.png) [@richard.zoom](https://devforum.zoom.us/u/richard.zoom)\
**Post date:** [April 15, 2025, 6:06am UTC](https://devforum.zoom.us/t/android-app-crashes-flutter-video-sdk/131306/2 "2025-04-15T06:06:46Z")

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Hello Gireesh,

What is the callback or other function in which you are calling `getUserID()`?

Thank you for your patience,  
Richard

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**Author:** ![gireesh.ks](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/gireesh.ks/32/48293_2.png) [@gireesh.ks](https://devforum.zoom.us/u/gireesh.ks)\
**Post date:** [April 15, 2025, 7:03am UTC](https://devforum.zoom.us/t/android-app-crashes-flutter-video-sdk/131306/3 "2025-04-15T07:03:11Z")

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I haven’t called that function. When a participant refreshes the browser on the web, the user leave event is triggered, and the app crashes with this error. However, it’s working fine on iOS with the same codebase.

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<div class="post-metadata">

**Author:** ![richard.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/richard.zoom/32/41061_2.png) [@richard.zoom](https://devforum.zoom.us/u/richard.zoom)\
**Post date:** [April 17, 2025, 2:37am UTC](https://devforum.zoom.us/t/android-app-crashes-flutter-video-sdk/131306/4 "2025-04-17T02:37:14Z")

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Hello Gireesh,

Which version of the Flutter Video SDK are you using? If possible, can you please try it on the latest 2.1.10?

Thank you for your patience,  
Richard

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<div class="post-metadata">

**Author:** ![gireesh.ks](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/gireesh.ks/32/48293_2.png) [@gireesh.ks](https://devforum.zoom.us/u/gireesh.ks)\
**Post date:** [April 17, 2025, 4:51am UTC](https://devforum.zoom.us/t/android-app-crashes-flutter-video-sdk/131306/5 "2025-04-17T04:51:56Z")

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flutter\_zoom\_videosdk: ^1.12.10

This is the version we are using

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<div class="post-metadata">

**Author:** ![richard.zoom](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/richard.zoom/32/41061_2.png) [@richard.zoom](https://devforum.zoom.us/u/richard.zoom)\
**Post date:** [April 17, 2025, 6:14am UTC](https://devforum.zoom.us/t/android-app-crashes-flutter-video-sdk/131306/6 "2025-04-17T06:14:16Z")

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Hello @gireesh.ks,

Would it be possible for you to try the latest version?

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<div class="post-metadata">

**Author:** ![gireesh.ks](https://sea2.discourse-cdn.com/flex016/user_avatar/devforum.zoom.us/gireesh.ks/32/48293_2.png) [@gireesh.ks](https://devforum.zoom.us/u/gireesh.ks)\
**Post date:** [April 17, 2025, 6:38am UTC](https://devforum.zoom.us/t/android-app-crashes-flutter-video-sdk/131306/7 "2025-04-17T06:38:22Z")

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> [@richard.zoom](#):
>
> 2.1.10

Working fine now. Thank you